I would convert my montero to electric motor with lithium ion batteries in the engine bay and where the gast tank is located and make the top into a giant solar panel and maybe the hood.

Add vinyl seats with warmers.

New flooring

ARB Air locker for the front

m101 trailer set up with matching tires and wheels to the montero

maybe a coilover ifs set up, just to be different

91 Montero LS "Sandstorm", Auto, Dual Bouncy Seats, 2" Suspension lift, 2" Body Lift, GENII front IFS, 32" MT tires

89 Raider "Trailbreaker", 3.0, Auto, Dual Bouncy Seats